MessageRecorder.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.cxf.testutil.recorders;

import java.util.List;

import org.junit.Assert;

public class MessageRecorder extends Assert {

    private OutMessageRecorder outRecorder;
    private InMessageRecorder inRecorder;

    public MessageRecorder(OutMessageRecorder or, InMessageRecorder ir) {
        inRecorder = ir;
        outRecorder = or;
    }

    public void awaitMessages(int nExpectedOut, int nExpectedIn, int timeout) {
        int waited = 0;
        int nOut = 0;
        int nIn = 0;
        while (waited <= timeout) {
            synchronized (outRecorder) {
                nOut = outRecorder.getOutboundMessages().size();
            }
            synchronized (inRecorder) {
                nIn = inRecorder.getInboundMessages().size();
            }
            if (nIn >= nExpectedIn && nOut >= nExpectedOut) {
                return;
            }
            try {
                Thread.sleep(100);
            } catch (InterruptedException ex) {
                // ignore
            }
            waited += 100;
        }
        if (nExpectedIn != nIn) {
            System.out.println((nExpectedIn < nIn ? "excess" : "shortfall")
                               + " of " + Math.abs(nExpectedIn - nIn)
                               + " incoming messages");
            System.out.println("\nMessages actually received:\n");
            List<byte[]> inbound = inRecorder.getInboundMessages();
            for (byte[] b : inbound) {
                System.out.println(new String(b) + "\n");
                System.out.println("----------------\n");
            }
        }
        if (nExpectedOut != nOut) {
            System.out.println((nExpectedOut < nOut ? "excess" : "shortfall")
                               + " of " + Math.abs(nExpectedOut - nOut)
                               + " outgoing messages");
            System.out.println("\nMessages actually sent:\n");
            List<byte[]> outbound = outRecorder.getOutboundMessages();
            for (byte[] b : outbound) {
                System.out.println(new String(b) + "\n");
                System.out.println("----------------\n");
            }
        }

        if (nExpectedIn > nIn) {
            assertEquals("Did not receive expected number of inbound messages", nExpectedIn, nIn);
        }
        if (nExpectedOut > nOut) {
            assertEquals("Did not send expected number of outbound messages", nExpectedOut, nOut);
        }
    }
}